Introduction to ionic equilibria in solution - class-XII
Description: introduction to ionic equilibria in solution | |
Number of Questions: 39 | |
Created by: Sharvani Hegde | |
Tags: equilibrium chemistry ionic equilibrium chemical equilibrium and acids-bases |
Which of the following is an example of weak electrolyte?
The polymer containing strong intermolecular forces, i.e. hydrogen bonding, is
Ionic solutions are good conductors of Electricity.
Degree of ionisation does not depend on:
Strong electrolyte of the following is?
The value of observed and calculate molecular weights of silver nitrate are $92.64$ and $170$ respectively.
Protolysis is transfer of:
In the beginning the reaction, ${\text{A}}\, \rightleftharpoons {\text{B + C,}}$ $2$ mole of $A$ are taken, out of which $0.5$ mole gets dissociated . What is the amount of dissociation of $A$ ?
Pure $PCl _5(g)$ was placed in a flask at $2\,atm$ and left for some time at a cretain temp. Where the following equilibrium was established $PCl _5(g) \rightleftharpoons PCl _3(g)+Cl _2(g)$
Under the given condition,pure oxygen was found to effuse $2.084$ time faster than the equilibrium mixture then $K _p$ of the above reaction is:
$C+O _{2}\rightarrow CO _{2}-Heat$
Two elements have electronegativity of 1.2 and 3.0. Bond formed between them would be ________________.
Which of the following statements are correct about dissociation?
Which of the following compounds will be dissociated into its constituent ions?
Acid strength and acid concentration represents:
Dissociation of molecules can be heterolytic or homolytic but ionisation is always heterolytic.
Which of the following compounds will be dissociated into its constituent ions?
The degree of ionisation does not depend upon :
$NaCl \longrightarrow Na^+ +Cl^-$
The above reaction is ionization or dissociation?
What is a net ionic equation?
Which of the followings is/are dissociation and not ionization?
The dissociation constants of monobasic acids A,B,C and D are $6 \times 10^{4}, 5 \times 10^{5}, 3.6 \times 10^{6}\ and\ 7 \times 10^{10}$ respectively. The pH values of their 0.1 molar aqueous solutions are in the order:
The $K _a$ value for the acid $HA$ is $1.0 \times 10^{-6}$. What is the value of K for the following reaction?
$A^+ + H _3O^+\rightleftharpoons HA + H _2O$
$pK _a$ values of four acids are given below at $25^oC$. Indicate the strongest acid.
Which of the following is/are ionization and not dissociation?
The process in which metal surface is made inactive is called:
The number of ions given by one molecule of $K {4}Fe(CN) _{6}$ after complete dissociation is___________.
Ionisation constant of each HA (weak acid) and BOH (weak base) are $3.0 x 10^{-7}$ each at 298K. The percentage degree of hydrolysis of BA at the dilution of 10L is :
The degree of dissociation of weak electrolyte increases by :
Which of the following statements is not correct?
Generally speaking, how can you determine the charge of an ion formed by a representative element?
$\frac { N } { 10 }$ acetic acid was titrated with $\frac { N } { 10 }$ NaOH.When $25 \% , 50 \%$ and $75$$\%$ of titration is over then the pH of the solution will be $: \left[ \mathrm { K } _ { a } = 10 ^ { - 5 } \right]$
Two electrolytic cells containing molten solutions of Nickel chloride and Aluminium chloride are connected in series. If same amount of electric current is passed through them, what will be the weight of Nickel obtained when $18gm$ of Aluminium is obtained? $\left( Al-27gm/mole,Ni-58.5gm/{ mole }^{ -1 } \right) $
100 mL of 1 M HCl is mixed with 50 mL of 2 M HCl. Hence, $[H 3O^+]$ is _______.
Solubility of $MX _{ 2 }$ type electrolytes is $0.5\times 10^{ -4 } mol/L$, Then find out ${ K } _{ sp }$ of electrolytes.
Diamagnetism is exhibited by_____
$H _2O \longrightarrow H^+ + OH^-$
The above reaction is dissociation or ionization?
Which will not affect the degree of ionisation?